diff --git a/os/client.c b/os/client.c
index 1311855d5..b5349778b 100644
--- a/os/client.c
+++ b/os/client.c
@@ -140,10 +140,9 @@ void DetermineClientCmd(pid_t pid, const char **cmdname, const char **cmdargs)
     /* Read the contents of /proc/pid/cmdline. It should contain the
      * process name and arguments. */
     totsize = read(fd, path, sizeof(path));
+    close(fd);
     if (totsize <= 0)
         return;
-    if (close(fd) < 0)
-        return;
     path[totsize - 1] = '\0';
 
     /* Contruct the process name without arguments. */